Fault case management method, system and equipment based on keyword graph and medium

The invention relates to the technical field of fault case management, in particular to a fault case management method, system and equipment based on a keyword graph and a medium, which can realize the fault case management method oriented to actual multi-type faults and is suitable for standardized evaluation of multi-type control law logic. Through keyword mining and keyword matching, a standardized evaluation method suitable for multi-type control law logic is realized for fault case retrieval requirements with huge case scale and complex fault types; specifically, a fault case retrieval method oriented to an SQL database is constructed based on text keyword mining of a word frequency-inverse text frequency index (TF-IDF), text keyword spectrum building based on an algorithm and text keyword matching based on regular matching, so that a fault case management method oriented to actual multi-type faults is realized. And effective application of maintenance support experience in actual engineering is supporte